US3435547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained scraper bowl assembly adapted for attachment with mobile vehicle
Assignee: WE MARTIN Co
•
Filing: 1966-12-15
•
Granted: 1969-04-01
•
Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 William E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:41
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/652; E02F3/6409; E02F3/6436; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87829; Y10T137/87837; Y10T137/87861
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1200173A
Cited
US2518105A
Cited
US2587869A
Cited
US2593679A
Cited
US3052049A
Cited
US3195248A
Cited
US3138883A
Cited
US3149429A
Cited
US3302316A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |